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Prius Two
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Engine Control System (Diagnostic Codes (P0300-P0657)) (Except Plug-In)
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SFI System
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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) [08/2014 - ]
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
Oxygen storage capacity of catalyst (Normalized)
Less than 1
FOR MEXICO MODELS:
Oxygen storage capacity of catalyst
Less than 0.07 g